It is becoming much more common. With the vast majority of orchids of the popular alliances being sold without names, or to people who don't care about names or even know something like the registration system exists, there is no economic incentive for producers to go through the registration process. They may even choose to sell a named hybrid under their own trademark rather than the registered name. Even if all of us who do care about registered names refused to buy unnamed or bogus named plants it wouldn't be enough for the big producers/sellers to notice a difference. Buyer beware. Get a smart phone and check names with the International Orchid Register before making those impulse purchases.